Johnson Power Rankings
The world authority on 200+ mile ultramarathon running — weekly, data-driven, course-difficulty-adjusted.

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Amber Caudell

Women · Americas

Ratings

Athlete ratings by board
BoardGenderRatingRankMove
ContinuousWomen1,17293• new
OverallWomen1,17293• new

Why this rank

The Overall rating is the time-decayed mean of this athlete’s best 3 in-window performance scores (highlighted below). Each score = base × difficulty × field-strength × quality.

Career results (200+ mile tier)

Arizona Monster 300 · Mar 27, 2026 · 304mi continuouscounts toward rating
place 66 · 6d 22:03:57 · difficulty 2.20 · field 2.45 · quality 0.29
1,544
Tahoe 200 Mile Endurance Run · Jun 13, 2025 · 200mi continuouscounts toward rating
place 155 · 4d 05:23:00 · difficulty 2.35 · field 2.32 · quality 0.31
1,679
Moab 240 Endurance Run · Oct 13, 2023 · 240mi continuouscounts toward rating
place 111 · 4d 19:44:25 · difficulty 1.95 · field 1.74 · quality 0.41
1,403
Moab 240 Endurance Run · Oct 7, 2022 · 240mi continuous
DNF · 240mi covered · difficulty 1.95 · field 1.86 · quality 1.00
1,271